Problem
Count how many characters in text are vowels: a, e, i, o, u in either uppercase or lowercase.
Implement count_vowels(text).
Input
text: The text to inspect (ASCII characters).
Output
Return the number of vowels.
Constraints
0 ≤ length ≤ 10,000
Examples
Example 1
Input:
text = "Hello World"
Expected output:
expected = 3Input:
std::string text = "Hello World";
Expected output:
long long expected = 3;Input:
string text = "Hello World";
Expected output:
long expected = 3;Explanation
e, o and o are vowels: 3.
Example 2
Input:
text = "AEIOU and y"
Expected output:
expected = 6Input:
std::string text = "AEIOU and y";
Expected output:
long long expected = 6;Input:
string text = "AEIOU and y";
Expected output:
long expected = 6;Explanation
A, E, I, O, U, a are vowels; y is not counted: 6.
References
This challenge is adapted for CodeUtility. Follow the statement and constraints above.